attribute vec3 pos;

varying vec2 V_Texcoord;
void main()
{
	vec4 worldPos = vec4(pos, 1.0);
	V_Texcoord = pos.xy - vec2(0.5, 0.5);
	worldPos.x *= 2.0;
	worldPos.y *= 2.0;
	gl_Position = worldPos;
}
